题目内容

Great changes in Shanghai in the past few years.

A.have taken place B.took place C.take place D.will take place

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I Mary Smith and this my friend, Lucy.

A.am, am B.am, is C.is, is D.is, am

The ice was too thin for us ________.

A.to skate on it B.skating on it

C.to skate on D.skating on

Complete the following sentences as required:

1.Tom has already booked an afternoon flight on China Eastern Airlines.(改为否定句）

Tom_______ booked an afternoon flight on China Eastern Airlines_________

2.Kim put on his finest suit for the interview to leave a good impression. (对划线部分提问)

_________Kim put on his finest suit for the interview?

3.Let's roll up our sleeves to work harder. (改为反义疑问句)

Let's roll up our sleeves to work harder,_______.

4.Alice asked Tina, "Have you got everything ready for the competition?" (改为宾语从句)

Alice asked Tina________ she had got everything ready for the competition.

5.The captain will choose ten boys to work as volunteers. ( 改为被动语态)

Ten boys will______ ________ to work as volunteers.

6.The speaker spoke loudly. All the audience could hear him. (同义转换)

The speaker spoke loudly_______ _______all the audience could hear him.

7.his teacher, apologized to, being, for, late, school, Jack, for (连词成句)

__________________________________________________________________

Some people have no choice but their dogs in small spaces.

A.keep B.keeping C.to keep D.kept

All the girls took part in the activity Ellie because of her broken leg.

A.beside B.besides C.except D.except for

Young sunflowers turn and swing every day. New findings add to evidence that the plants are animal-like.

Harmer, a professor in the University of California at Davis, Department of Plant Biology, carried out a series of experiments on sunflowers in the field, in pots outdoors and in indoor growth chambers.

By staking plants so that they could not move, Harmer showed that he could destroy their ability to track the sun. He also noticed that sunflowers prevented from moving were not as tough and leafy as those that were free to move. When plants were moved indoor with a settled overhead light, they continued to swing back and forth for a few days.

The indoor plants did start tracking the “sun” again when the apparent source of lighting was moved across the room. The plants could reliably tack the movement and return at night when the artificial day was close to a 24-hour cycle, but not when it was closer to 30 hours.

When sunflowers track the sun, the east sides of their stems grew more rapidly than the west sides. At night, the west sides grew faster as the stem swung the other way. The team identified a number of genes that were expressed at higher levels on the sunward side of the plant during the day or on the other side at night. A plant growth-regulating hormone (激素), called auxin, appears to be a key driver.

The “dance” to the sun cycle obviously slows when the sunflower matures (成熟) and its flowers open up. At that point, the plants stop moving during the day and settle down facing the sun in the east.

“Bees like warm flowers.” Harmer said, adding that the bees are cold-blooded, so landing on a warm flower saves them energy and perhaps feels really good.

“The morning warmth changes the flowers in a way to make them more appealing to insects, perhaps causing them to release more attractive scents earlier in the day.” he said “We’re currently testing this idea.”

1.Why did Harmer do the experiment on sunflowers?

A.To see how sunflowers grow up B.To show what sunflowers’ genes are.

C.To study why sunflowers track the sun. D.To check if sunflowers swing in cloudy days.

2.What does the underlined word “staking” probably mean in Paragraph 3?

A.breaking B.controlling C.growing D.searching

3.What is the result of sunflowers being stopped from moving?

A.They will produce a number of new genes. B.They will grow faster than usual.

C.They won’t swing back though set free. D.They won’t grow well.

温馨提示：此题请答在答题纸上。

People sometimes like to read stories of dogs very much. They think that dogs are much cleverer than cats, sheep, cows or other animals in their homes.

One of my close friends, Bob, has a very large police dog named Jack. Every Sunday afternoon, Bob and Jack have a walk in the park nearby. Jack likes these walks very much. One Sunday afternoon, I paid a visit to my friend. I stayed there for a long time and my friend and I had much more talk with each other than ever before. Soon it was time for them to take a walk in the park. We forgot that. Jack became worried about it. He walked around the room several times and then sat down in front of me and looked at me. But I still paid no attention (注意) to him. I went on talking with my friend. At last, Jack could not wait any longer. He went out of the room and came back a few minutes later. He sat down in front of me again. But this time, he held my hat in his mouth. Suddenly, I understood what Jack meant and so did my friend.

1.Are there two people in this story?

___________________________________________

2.What does Jack like to do every Sunday afternoon?

___________________________________________

3.Why was Jack worried?

___________________________________________

4.What did Jack want me to do by holding my hat in his mouth?

___________________________________________

5.What happened next?

___________________________________________

He doesn’t feel __________, __________ he has to see a doctor.

A.good enough；but B.well enough；but

C.good enough；so D.well enough；so

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